6 West 18th Street

6 West 18th Street has about 52,000 square feet of floor area in total, including 47,000 square feet of office, 5,000 square feet of retail and 0 square feet of industrial and storage space, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

The Landmarks Preservation Commission's building records date 6 West 18th Street to 1909-1910, designed by Schwartz & Gross. The building is 12 floors tall.

Schwartz & Gross, according to the Landmarks Preservation Commission's building records, which list the style as Beaux-Arts and its original use as store and lofts.

City records list 6-8 West 18th Street on the same tax lot (BBL 1008190050) as 6 West 18th Street. A space listed on Leasemark at any of these addresses shows up on this page.

6 West 18th Street is in ZIP code 10011, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 6 West 18th Street, New York, NY 10011, in Flatiron.

The lot is in the C6-4A zoning district. PLUTO lists a built floor area ratio (FAR) of 10.85 and a maximum commercial FAR of 10 for this lot. It is inside the Ladies' Mile Historic District, so exterior changes go through the Landmarks Preservation Commission.

The closest subway station to 6 West 18th Street is 14 St (the 1, 2, 3, F, M and L trains, connected to 6 Av), about 950 feet away in a straight line, roughly 4 minutes on foot. The MTA lists it as an accessible station. Also nearby: 14 St-Union Sq (the 4, 5, 6, L, N, Q, R and W trains), 5 min walk; 23 St (the R and W trains), 5 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists 6-8 WEST 18TH STREET LLC as the owner of record of 6 West 18th Street (BBL 1008190050). Big buildings are usually held through a company set up for that one property, so the name on the roll can differ from the landlord's brand or the managing agent. Deeds and mortgages for the lot are public in ACRIS, the city's property records system.

6 West 18th Street's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (the filing does not cover 12 full months of meter data), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade.

In the 12 months to October 2026, the Department of Buildings issued first permits for 2 jobs at 6 West 18th Street. In the last two years, interior work was permitted on 2 floors (floors 1 and 9 and the lobby). The newest build-out, on floor 1, was first permitted in September 2026 (construction, plumbing; filed cost estimate $15,000). These are the Department of Buildings' DOB NOW work permits for tax lot 1008190050. A permit is approval to do the work; it does not say who the work is for or whether it is finished.

The Department of Finance's 2026/27 assessment roll lists a taxable value of $4.13 million for 6 West 18th Street. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $448,131 a year, roughly $8.64 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1008190050 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 6 West 18th Street at $9.18 million ($1.6 million of it land) and its assessed value at $4.13 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 13% from 2022/23 ($10.5 million) to 2026/27.

No space at 6 West 18th Street is listed on Leasemark right now. Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.